Fuel Injector 51101017231 0432231817 for Mercedes-Benz Condition: New Aftermarket Part Note: We recommend replacing the entire set of fuel injectors to ensure the engine's optimal performance. Due to differences in oil output and atomization concentration between and aftermarket parts, they should not be mixed. Replacing the entire set of injectors helps avoid potential issues.Replacement Part Number: 51101017231, 0432231817, 0 432 231 817 Application:Fit For Mercedes-Benz Specification: Matching Nozzle DLLA34S837